EP0210504B1 - Procédé et dispositif pour produire une plaque en matière synthétique à section alvéolée - Google Patents

Procédé et dispositif pour produire une plaque en matière synthétique à section alvéolée Download PDF

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Publication number
EP0210504B1
EP0210504B1 EP19860109520 EP86109520A EP0210504B1 EP 0210504 B1 EP0210504 B1 EP 0210504B1 EP 19860109520 EP19860109520 EP 19860109520 EP 86109520 A EP86109520 A EP 86109520A EP 0210504 B1 EP0210504 B1 EP 0210504B1
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EP
European Patent Office
Prior art keywords
webs
cover layer
process according
edges
hollow chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19860109520
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German (de)
English (en)
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EP0210504A2 (fr
EP0210504A3 (en
Inventor
Heinz Dr.-Ing. Gross
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roehm GmbH Darmstadt
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Roehm GmbH Darmstadt
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Roehm GmbH Darmstadt filed Critical Roehm GmbH Darmstadt
Priority to AT86109520T priority Critical patent/ATE51580T1/de
Publication of EP0210504A2 publication Critical patent/EP0210504A2/fr
Publication of EP0210504A3 publication Critical patent/EP0210504A3/de
Application granted granted Critical
Publication of EP0210504B1 publication Critical patent/EP0210504B1/fr
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/438—Joining sheets for making hollow-walled, channelled structures or multi-tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83421—Roller, cylinder or drum types; Band or belt types; Ball types band or belt types
    • B29C66/83423—Roller, cylinder or drum types; Band or belt types; Ball types band or belt types cooperating bands or belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83531—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on chains
    • B29C66/83533—Cooperating jaws mounted on cooperating chains and moving in a closed path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91411—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91441—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time
    • B29C66/91443—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time following a temperature-time profile
    • B29C66/91445—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time following a temperature-time profile by steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B29C66/91931—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D24/00—Producing articles with hollow walls
    • B29D24/002—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled
    • B29D24/005—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled the structure having joined ribs, e.g. honeycomb
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1003—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by separating laminae between spaced secured areas [e.g., honeycomb expanding]

Definitions

  • the invention relates to a method and a device for producing a hollow chamber plate made of plastic by combining two flat layers of plastic with a plurality of webs arranged vertically therebetween.
  • Twin-wall sheets made of plastic are predominantly made in one piece by extrusion, cf. DE-OS 15 04 800, 16 09 777. From CH-PS 457 829 and DE-OS 32 38 370 it is known to extrude hollow chamber plates with parallel corrugated webs through oscillating core pieces in the extrusion die. Subsequent expansion of a hollow wall panel extruded with fluctuating outer wall thicknesses also makes it possible, according to DE-OS 25 36 462, to manufacture hollow wall panels with webs which are corrugated in opposite directions.
  • twin-wall sheets are obtained with webs running obliquely to the direction of extrusion by simultaneously extruding a smooth plastic layer and a second plastic layer with webs perpendicular to it, running diagonally to the direction of extrusion and combining the two layers in the thermoplastic state.
  • the webs run parallel to one another.
  • a smooth plastic layer is connected to a second layer, which has bars perpendicular to it, preferably arranged in a cross grid, after the web heads have melted.
  • DE-PS 25 56 016 permits the production of hollow chamber panels with webs arranged in any manner by gluing separately produced cover layers and webs together.
  • a method for producing a hollow chamber board in which a partition wall with webs projecting on both sides is produced and cooled and then cover layers made of thermoplastic material are placed on the edges of the webs and welded to them.
  • cover layers made of thermoplastic material are placed on the edges of the webs and welded to them.
  • a three-layer hollow chamber plate is created, in which the position of the webs is determined by their arrangement on the middle partition.
  • the invention has for its object to produce a plastic hollow sheet without a central partition made of plastic by combining two flat layers with a plurality of continuous webs arranged vertically therebetween by a simplified method.
  • the method should allow any arrangement of the webs passing through and should be able to be carried out without additional aids for connecting the webs to the layers.
  • the method according to the invention and the device according to the invention allow any arrangement of the webs, for example also a course with spacing that changes in the longitudinal direction up to the mutual contact of the webs.
  • thermoplastic layers are produced by extrusion immediately before being connected to the webs, so that additional heating devices are not required to achieve the thermoplastic state.
  • the method of the invention can e.g. can be used for the production of twin-wall sheets with straight parallel or corrugated parallel webs.
  • the webs and the cover layers can consist of different plastic materials, provided that they weld together under the process conditions. This applies e.g. for webs and cover layers made of otherwise the same plastic material that are colored differently or equipped with other different additives.
  • the arrangement of the webs at different intervals in particular by changing the contact or approach of the webs arranged between the edge webs with their respective neighboring webs, allows a considerable transverse rigidity of the hollow chamber plate to be achieved.
  • Prefabricated webs and cover layers are used for the process, it being advantageous to produce the cover layers immediately beforehand by extrusion and to connect them to the webs even in the thermoplastic state.
  • the webs can also be produced by extrusion, but this is preferably done independently of the method of the invention.
  • prefabricated strip material can be taken from a supply roll for each web.
  • the cover layers and webs consist of thermoplastic materials, preferably with melting temperatures between 100 and 450 ° C.
  • thermoplastic materials preferably with melting temperatures between 100 and 450 ° C.
  • acrylic glass, ie homopolymers and copolymers of methyl methacrylate, polystyrene, polyolefins, polyvinyl chloride, polycarbonates, polysulfones, polyesters, polyamides, polyphenylene oxide and the like are suitable.
  • the cover layers and webs usually have the same or similar thicknesses in the range of 0.5 to 2 mm.
  • the webs can be 5 to 50 mm high, for example, and have average distances of the same order of magnitude.
  • the cover layers have more common wise widths between 0.5 and 2 m.
  • all the webs which are to be connected to a cover layer are first brought into the desired position and temporarily fixed with suitable holding means. Then a thermoplastic cover layer is applied to the upper web edges and allowed to weld to them. After cooling, the webs are fixed to the cover layer, so that the temporary fixation can be removed and (preferably in a further operation) the lower web edges can be connected to the second cover layer in the same way.
  • the slide chain 9 provided with sorting needles 8 is used for the provisional fixation of the webs 1 continuously rolled off supply rolls 6.
  • a number of supply rolls 6 corresponding to the desired number of webs is rotatably mounted on a roll carrier 7.
  • the function and mode of operation of the slide chain 9 can be seen from FIGS. 5 and 6.
  • the chain 9 composed of chain links 33 runs slowly via gear guides 10, 11 in the direction of extrusion, the speed of the drive 12 being set such that the chain rotates at the rate of extrusion.
  • the chain links 33 carry extensions 13 on which slides 14, 15 are arranged to be displaceable transversely to the direction of movement.
  • the extensions 13 expediently carry widened heads 16, which are encompassed by the slide 14, which has a retracted U-profile.
  • the slide 15 with a similar but larger profile comprises the slide 14.
  • the lateral movement of the slide 14, 15 is controlled by guide rails 17, 18.
  • a claw 19 is arranged which engages over the guide rail 17, so that the slide 14 always follows the contour of the guide rail 17.
  • the slide 15 is guided on the guide rail 18 by means of the claw 20.
  • the slides 14 carry mandrels 8, which protrude through slots 21 in the slides 15 to the outside.
  • the slider 15 also carry mandrels 8 '.
  • the mandrels 8 and 8 ' are arranged on the slides 14 and 15 so that when the slides are in the spread position in the range of motion P of the chain 9 they are on either side of the straight webs 1.
  • the slides 14, 15 move together in the movement range Q of the chain 9, the mandrels 8 and 8 'move in opposite directions over the (dashed) line of entry 1' of the webs 1, as a result of which the web assumes an undulating course.
  • the hold-down 21 prevents the webs from being lifted out of the needle fixation by the mandrels 8, 8 '.
  • the upper cover layer 3 is placed on the corrugated webs 1 by means of the extrusion wide slot tool 22 and cooled below the softening temperature on the calibrator 23, which sucks the cover layer 3 by means of a vacuum.
  • the second cover layer 4 is applied in the subsequent region R using a second extrusion slot die 24 and cooled on the calibrator 25.
  • the finished hollow chamber web 26 is drawn off uniformly according to the extrusion speed by means of the take-off device 27, consisting of a pair of rollers or a double belt, by means of the drive device 28.
  • the cover layers 3 and 4 are not applied directly from the slot tools 29, 30 to the web edges, but to continuously rotating endless belts 31, 32 (preferably made of polished steel) heated to the melting temperature, from where they are applied to the Web edges are transferred.
  • the calibrators 23 and 25 act indirectly on the extruded cover layers 3, 4 via the endless belts 31, 32.
  • the endless belts also take over the function of the take-off device. This process variant contains twin-wall sheets with a particularly good surface quality.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Plasma & Fusion (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Claims (11)

1. Procédé de fabrication d'une plaque alvéolaire en matière plastique par union de deux couches extérieures planes en matière plastique se trouvant à l'état thermoplastique avec une multiplicité d'entretoises disposées entre ces couches, les entretoises étant mises en contact avec les couches extérieures à une température inférieure à leur température de ramollissement, caractérisé en ce que toutes les entretoises qui doivent être unies à une couche extérieure sont d'abord mises dans la position désirée et fixées provisoirement avec des moyens de maintien appropriés, en ce qu'une première couche extérieure thermoplastique est placée sur les arêtes libres des entretoises fixées et on la laisse se souder à celles-ci, en ce que la couche extérieure est refroidie au-dessous de la température de ramollissement, en ce que la fixation provisoire des entretoises, désormais fixées à la couche extérieure à la suite du refroidissement, est supprimée, et en ce que les autres arêtes des entretoises sont unies à la seconde couche extérieure, de la même manière qu'avec la première couche extérieure.
2. Procédé selon la revendication 1, caractérisé en ce que les couches extérieures issues d'outils à filière plate sont étendues sur des bandes sans fin circulant en continu et sont transférées à partir de celles-ci sur les arêtes des entretoises.
3. Procédé selon la revendication 2, caractérisé en ce que les couches extérieures sont étendues sur des bandes sans fin qui sont chauffées à la température de fusion de la matière plastique.
4. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les couches thermoplastiques sont produites par extrusion immediatement avant leur union aux entretoises.
5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les entretoises sont disposées à des distances mutuelles qui varient en direction longitudinale.
6. Procédé selon la revendication 5, caractérisé en ce que les entretoises disposées entre les entretoises bordantes sont mises alternativement au contact ou à faible distance des entretoises qui leur sont respectivement voisines.
7. Dispositif pour l'exécution en continu du procédé selon l'une quelconque des revendications 1 à 6, caractérisé par:
a) un dispositif d'alimentation continue en entretoises préfabriquées;
b) un dispositif de triage pour la fixation provisoire des entretoises dans une disposition désirée et pour le transport des entretoises fixées dans la direction de travail;
c) un premier outil d'extrusion à filière plate pour la production d'une première couche extérieure extrudée;
d) un premier dispositif de calibrage pour le refroidissement de la couche extérieure extrudée au contact des arêtes libres des entretoises triées;
e) un second outil d'extrusion à filière plate pour la production d'une seconde couche extérieure extrudée, disposée en aval de l'extrémité du dispositif de triage dans la direction de travail;
f) un second dispositif de calibrage pour le refroidissement de la seconde couche extérieure extrudée au contact des autres arêtes des entretoises;
g) un dispositif de déchargement pour le transport de la plaque alvéolaire produite par le procédé.
8. Dispositif selon la revendication 7, caractérisé en ce que des bandes qui circulent sans fin sont disposées respectivement dans la région du point d'application de la première couche extérieure et du premier dispositif de calibrage, ainsi que dans la région du point d'application de la seconde couche extérieure et du second dispositif de calibrage, et en ce que le premier et le second outils d'extrusion à filière plate sont disposés de telle manière que chacune des couches extérieures extrudées soit étendue sur l'une des bandes circulant sans fin et qu'elle pénètre avec celle-ci dans la fente entre les arêtes des entretoises et le dispositif de calibrage correspondant.
9. Dispositif selon la revendication 7 ou 8, caractérisé en ce que le dispositif de triage est constitué par une chaîne à maillons circulant sans fin, dont les maillons ont au moins à peu près la largeur de la plaque alvéolaire à fabriquer et présentent, sur leur côté extérieur, des éléments directeurs par l'actionnement desquels les entretoises peuvent être fixées dans une disposition désirée.
10. Dispositif selon la revendication 9, caractérisé en ce que les maillons de la chaîne à mail-Ions présentent des éléments directeurs mobiles transversalement par rapport à la direction de mouvement de la chaîne.
11. Dispositif selon la revendication 10, caractérisé en ce que les maillons présentent deux groupes d'éléments directeurs mobiles transversalement en sens opposés.
EP19860109520 1985-07-26 1986-07-11 Procédé et dispositif pour produire une plaque en matière synthétique à section alvéolée Expired - Lifetime EP0210504B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86109520T ATE51580T1 (de) 1985-07-26 1986-07-11 Verfahren und vorrichtung zur herstellung einer hohlkammerplatte aus kunststoff.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3526752 1985-07-26
DE19853526752 DE3526752A1 (de) 1985-07-26 1985-07-26 Verfahren zur herstellung einer hohlkammerplatte aus kunststoff

Publications (3)

Publication Number Publication Date
EP0210504A2 EP0210504A2 (fr) 1987-02-04
EP0210504A3 EP0210504A3 (en) 1988-09-28
EP0210504B1 true EP0210504B1 (fr) 1990-04-04

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Application Number Title Priority Date Filing Date
EP19860109520 Expired - Lifetime EP0210504B1 (fr) 1985-07-26 1986-07-11 Procédé et dispositif pour produire une plaque en matière synthétique à section alvéolée

Country Status (7)

Country Link
US (1) US4877474A (fr)
EP (1) EP0210504B1 (fr)
JP (1) JPS6228229A (fr)
AT (1) ATE51580T1 (fr)
CA (1) CA1302215C (fr)
DE (2) DE3526752A1 (fr)
IL (1) IL79393A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2830024B2 (ja) * 1989-03-30 1998-12-02 東レ株式会社 羽二重タッチ様布帛およびその製造方法
DE9014968U1 (de) * 1990-10-30 1992-02-27 Röhm GmbH, 6100 Darmstadt Vorrichtung zur Extrusion von Hohlkammerplatten aus thermoplastischem Kunststoff
US5466409A (en) * 1993-10-19 1995-11-14 Kimberly-Clark Corporation Forming belt for three-dimensional forming applications
DE9404844U1 (de) * 1994-03-22 1995-07-27 Degussa-Hüls AG, 60311 Frankfurt Vollständig recyclierbarer Verbundkörper, insbesondere zur Herstellung von Möbelplatten
DE10256852A1 (de) * 2002-12-04 2004-06-24 Christoph Roos Verfahren und Vorrichtung zur Herstellung von Hohlkammerplatten
DE102013111362A1 (de) 2013-10-15 2015-04-16 Simona Ag Hohlkammerplatte aus Kunststoff und Verfahren zur Herstellung einer Hohlkammerplatte

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US2992673A (en) * 1958-10-13 1961-07-18 Harold A Bishop Method and machine for making cellular structures
US3247039A (en) * 1959-05-20 1966-04-19 Union Carbide Corp Method and apparatus for producing honeycomb structure
DE1195476B (de) * 1961-05-05 1965-06-24 Ekkehard Friedl Vorrichtung zum Herstellen von aus Polyvinylchlorid-Straengen gebildeten Matten
DE1609777A1 (de) * 1965-07-06 1970-04-30 Roehm & Haas Gmbh Lichtdurchlaessige Abdeck- oder Wandplatte aus thermoplastischem Kunststoff
GB1117527A (en) * 1965-08-06 1968-06-19 Ici Ltd Thermoplastic sheet
GB1130598A (en) * 1966-05-25 1968-10-16 Ici Ltd Extruded sheet
US3682736A (en) * 1968-07-18 1972-08-08 Susumu Akamatsu Method for the continuous manufacture of corrugated cardboards of synthetic resin
US3758354A (en) * 1969-10-18 1973-09-11 Gunze Kobunshi Kogyo Co Ltd Manufacture of multi ply board of thermoplastic material
JPS4929951B1 (fr) * 1969-10-22 1974-08-08
JPS4829768B1 (fr) * 1970-03-16 1973-09-13
US3673057A (en) * 1970-07-22 1972-06-27 Fmc Corp Cellular structures
JPS4811067U (fr) * 1971-06-24 1973-02-07
JPS5142552A (fr) * 1974-10-08 1976-04-10 Asahi Optical Co Ltd
DE2536462A1 (de) * 1975-08-16 1977-02-24 Roehm Gmbh Verfahren zur herstellung gereckter hohlprofilstraenge mit nicht kreisfoermigem querschnitt
DE2556016C3 (de) * 1975-12-12 1978-09-28 Hans Klingel Verfahren zur Herstellung einer lichtdurchlässigen und lichtstreuenden Kunstharzplatte in Sandwichbauweise
JPS5962137A (ja) * 1982-10-04 1984-04-09 三菱化成ポリテック株式会社 ハニカム構造体の製造方法
DE3238370A1 (de) * 1982-10-16 1984-04-19 Bayer Ag, 5090 Leverkusen Wendelstegdoppelplatte

Also Published As

Publication number Publication date
DE3670044D1 (de) 1990-05-10
EP0210504A2 (fr) 1987-02-04
US4877474A (en) 1989-10-31
ATE51580T1 (de) 1990-04-15
CA1302215C (fr) 1992-06-02
JPS6228229A (ja) 1987-02-06
DE3526752A1 (de) 1987-01-29
EP0210504A3 (en) 1988-09-28
IL79393A (en) 1992-07-15

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